Window construction.



A. MACKINNON.

WINDOW CONSTRUCTION.

APPLICATION FILED 0014,1916.

Patented June 11, 1918.

2 SHEETS-SHEET I.

M f M p M fi/Wmi m7 ATTORNEYS A. MAcKINNON.

WINDOW CONSTRUCJION.

APPLICATION FILED OCT-4.1916.

Patented June 11, 1918.

2 SHEETS-SH E W n W 4%? m if AMac/Qkmwz 72% ancnmarn MAoKINNON, or TUCKAHOE, new YORK.

wnvnow cons'rnuc'rron.

Specification of Letterslatent. Patentgd Jung 11, 11913,

Application filed; October 4, 1916. Serial No. 123,672.

clear, and exact descriptlon.

This invention relates to window constructions and deals particularly with the novel combination of window frame, revolving sashes and screens.

The general objects of the invention are. to improve and simplify the construction and operation of structures of .this character so as to be reliable and efficient in use, of durable and substantial form, and so designed as to insure rain, windand dustproofness.

A more specific object of the invention is.

to provide a novel construction of window frame and novel means for suspending the sashes so that the sashes can be revolubly suspended directly on the counterbalance weight chains, theisashes revolving on horizontal axes when the sashes. are in lowered position.

Another specific object of the invention is the provision of a simple, noveland eifective screen which embodies a frame slidably mounted in the window frame and lying between the window sashes so as to take the place of theusual partin strip, the screen being composed of a hol ingframe which can remain in the window ame, and the screen proper can be detached therefrom.

- With such objects in view, and others which will appear as the description proceeds, the invention comprises various novel. features of construction and arrangement of parts which will be set forth withparticularity in the following description and claims appended hereto.

In the accompanying drawing which illustrates one embodiment of the invention and wherein similar characters of reference indicate corresponding parts in all the views,

Figure 1 is a front view ofthewindow with portions of the frame broken away to illustrate the details of construction, the lower sash being partly raised and the screen down;

Fig. 2 is a vertical section on the line 22, Fig. 1., v a

Fig. is a horizontal section on the linee-e, Fig. 1;

with the window sashes, and the section being in the plane of the screen;

Fig. 5 is a detail section of the lower part of the window frame with the screen partly raised;

Fig. 6 is a detail line 6-6, Fig. 2;

Fig. '7 is a fragmentary perspective view of the window screen; and

. Fig. 8 is a detail line 8-8, Fig. 2.

Referring to the drawings, A designates the window frame, B and C the lower and upper sashes, and D the window screen. The window frame includes the sill l, which is of usual construction except that a stop 2 may be employed for engagement by the bottom of the lower sash to prevent the latter from moving outwardly. The sides 3 of the window frame are each formed with a groove 4 extending the full height of the frame to form guides for the side edges of the screen D, and parallel with the groove 3 are additional grooves 5 and 6 for receiving the suspension chains for the lower and upper sashes. These grooves extend downwardly from the flush considerably short of the window sill. The lintel8of the window frame is of usual construction except that it has the deep recess 9 to allow the top portion of the lower sash to rise to a considerable height for providing clearance when the lower sash is lowered and rotated. As shown in F ig.6, the upper portion of the screen groove 4: in the left hand side of the window frame is somewhat deeper than the lower portion so as to provide. for lateral movement of the screen to disengage. it from the window frame, there being in this deepened portion 4 of the groove 4:, leaf springs 10 which normally retainthe right edge of the screen engaged in the groove 4 in the right side of the window frame.

The upper andlower sashes B and C are of usual construction, except that the upper cross bar 11 of the lower sash and the bottorncross bar 12 of the upper sash are not beveled and do not overhang to meet, as is usual'in sashes. As shown in Fig. 2, the bars 11 and 12 have fiat opposed faces and sectional view on the Fig. i is a vertical section taken parallel sectional view on the pulleys 7 to a point sashes. These pins 18 are disposed midway the ends of the stiles 19, so that the sashes can swing on horizontal axes in balanced condition. In this construction it will be noted that the sashes are directly pivoted on the suspension chains, and as the chains are disposed in the grooves in the window frame the edges of the sash stiles can lie close to the inner surfaces of the sides of thewindow frame. The lower sash must be in lowered position in order to revolve on its pivots 18, and to permit this the inner beads or stops 20 have lower sections a mounted on the window frame by hinges 21, so thatthey canbe swung from the full to the dotted lincposition, Fig. 8. The lower sash can then be turned almost half way around to thedotted-line position, Fig. 2, so that the outer surface of the pane can be readily cleaned. It is to be understood that the screenD must be in fully raised positionbefore either sash can be turned.

The upper sash must be also lowered before it can be revolved, and to permit it to be revolved the outer beads or stops 22 on the sides of the window frame. extend only about half way down the latter from the top, asshown in Fig. 2, and in line with these beads and considerably below the same are depressible stops 23set in the sides of the window frame so as to prevent the lower sash from outward displacement when it is in loweredposition. When the sashis lowered it can be turned by throwing the lower portion outwardly and the upper portion inwardly, but in order to do this the resistance of the yielding stops 23 must be overcome. This is also true when the lower sash is turned. To hold the upper sash from moving inwardly when the screen is lowered, as shown in Fig. 2, thin side strips 24: are set into the upper portions of the grooves 4 to engage the stiles of the sash (I, and a stop strip 25 fastened to the lintel engages the top bar of the window sash C. These strips 2a and 25 may be pieces of sheet metal angles secured in place by suitable fasteners. These strips contribute in producing extremely tight joints between the uppersash and the windowframe.

The screen D comprises a rectangular frame 26 slightly wider than the sashes,

since the side edgesthereof engage in the grooves 4, and is about the same helght as the lower sash. Within this frame 26 is the screen body section 27 which is removably set in the frame 26 and held in any suitable manner, as, for instance, by upwardly extending pins-2 8 on the top of the body section 27, which pins engage in sockets 29 in the top bar 30 of the holding frame 26. The bottom of the body section 27 is held in place'by a button 31 on such body section, which engages behind a catch or stop 32 on the bottom bar of the frame 26. This catch or keeper 32 maytake the form of a grip or finger-hold, whereby the screen may be engaged for raising and lowering the same. While the screen as a whole can be removed, it is preferable to leave the frame 26in place and remove only the body section 27 of the screen during theseason of the year when screens are not required. As shown in Figs. 5 and 7 the vertical bars of the frame 26 have tongue portions 26 tapering in two planes, and the lower ends of the grooves l are so shaped that an extremely tight fit is obtained between the screen and the window frame when the screen is down. a By reason of this the screen frame 26 cooperates with the lower sash to insure tight joints in order to'keep out wind, dust and rain.

The parting means between the upper and lower sashes is formed by the metal strips 2e and by the frame 26 of the screen. These two parts of the parting means are located in the grooves inthe window frame and when the part 26 of the parting means is in raised position alongside of the stationary part 24 of the parting means, either sash can beturned while in the lower partof the window frame, as explained.

Aastructure designed as illustrated and described is comparatively simple and inexpensive, enables sashes to. be readily turned for cleaning the panes or for any other purpose, and rattling noises are eliminated and proofness against the entrance of rain, wind and air insured.

Fromthe foregoing description taken in connection with the accompanying drawings, the advantages of the construction and method ofoperationwill be readily understood by those skilled in the art to which the invention appertains,and while LI have desashes each capable of turning on ahorizontal axis, and parting means between the sashes, said parting means comprising thin strips fastened in the upper portions of the grooves'to engage with the upper sash when in normal position, and a frame sliding in the grooves and engageable with the lower sash, when in normal position, said frame being slidable upwardly in the window frame to lie alongside of the said strips for permitting either sash to to be turned.

2. The combination of a window frame having on the inner face of each side a longitudinal groove, upper and lower window sashes slidably mounted in the frame and disposed at opposite sides of the grooves, means for supporting the window sashes and for permitting each to turn on a horizontal axis, and parting means located within each groove, each parting means comprising a fixed strip lying along the upper sash and terminating short of the lower sash, and a slidable element in the groove adapted to occupy a position in the bottom of the frame to hold the lower sash in place and adapted to move into the upper part of the frame for permitting either sash when in lowered position to turn.

3. The combination of a window frame having on the inner face of each side a longitudinal groove, upper and lower window sashes slidably mounted in the frame and disposed at opposite sides of the grooves, means for supporting the window sashes and for permitting each to turn on a horizontal axis, and parting means located within each groove, each parting means comprising a fixed strip lying along the upper sash and terminating short of the lower sash, and a slidable element in the groove adapted to occupy a position in the bottom of the frame to hold the lower sash in place and adapted to move into the upper part of the frame for permitting either sash when in lowered osition to turn, said element being in the orm of a frame extending from one side of the window frame to the other and having} means for removably holding a screen.

ARCHIBALD MAGKINNON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 63. 

